1　前言超短光脉冲的产生是激光器的特长之一 ,从 6 0年代起开发的纳秒、皮秒光脉冲已被运用于从基础研究到应用的各个领域。近几年 ,在皮秒、亚皮秒领域开展使用光纤激光器、半导体激光器通信和计测的系统化研究。关于脉冲的超短化方面 ,由于在许多激光器上都得到 1 0 - 1 3 s 1 Introduction Ultrashort optical pulse generation is one of the specialties of lasers. The nanosecond and picosecond optical pulses developed from 1960s have been applied in various fields ranging from basic research to applications. In recent years, systematic studies using fiber lasers, semiconductor laser communications and measurements have been conducted in picoseconds and picoseconds. With regard to the overshoot of pulses, this is due to the fact that on many lasers it is 10 -1 3 s